ipmi/ocp: Move common OCP/Facebook IPMI OEM codes into drivers/ipmi/ocp

1. These are common OCP/Facebook IPMI OEM commands, move from mainboard
into drivers/ipmi/ocp to avoid code duplication and provide better
reusability.
2. OCP Tioga Pass enables IPMI_OCP driver.

Tested=On OCP Delta Lake and Tioga Pass verify the commands still work
correctly.

Change-Id: Idd116a89239273fd5cc7b06c7768146085a3ed69
Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49235
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>

14 files changed, 150 insertions, 167 deletions

diff --git a/src/drivers/ipmi/ocp/Makefile.inc b/src/drivers/ipmi/ocp/Makefile.inc
index 8291f82677..c77ee4a964 100644
--- a/src/drivers/ipmi/ocp/Makefile.inc
+++ b/src/drivers/ipmi/ocp/Makefile.inc
@@ -1 +1,4 @@
 ramstage-$(CONFIG_IPMI_OCP) += ipmi_ocp.c
+ifeq ($(CONFIG_IPMI_OCP),y)
+romstage-$(CONFIG_IPMI_KCS_ROMSTAGE) += ipmi_ocp_romstage.c
+endif
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp.c b/src/drivers/ipmi/ocp/ipmi_ocp.c
index 07628ee1ff..ee38bb0076 100644
--- a/src/drivers/ipmi/ocp/ipmi_ocp.c
+++ b/src/drivers/ipmi/ocp/ipmi_ocp.c
@@ -12,6 +12,7 @@
 #include <device/device.h>
 #include <device/pnp.h>
 #include <drivers/ipmi/ipmi_kcs.h>
+#include <drivers/ocp/dmi/ocp_dmi.h>
 #include <intelblocks/cpulib.h>
 #include <string.h>
 #include <types.h>
@@ -115,6 +116,30 @@ static void ipmi_set_processor_information(struct device *dev)
 		printk(BIOS_ERR, "IPMI BMC set param 2 processor info failed\n");
 }
 
+static enum cb_err ipmi_set_ppin(struct device *dev)
+{
+	int ret;
+	struct ipmi_rsp rsp;
+	struct ppin_req req = {0};
+
+	req.cpu0_lo = xeon_sp_ppin[0].lo;
+	req.cpu0_hi = xeon_sp_ppin[0].hi;
+	if (CONFIG_MAX_SOCKET > 1) {
+		req.cpu1_lo = xeon_sp_ppin[1].lo;
+		req.cpu1_hi = xeon_sp_ppin[1].hi;
+	}
+	ret = ipmi_kcs_message(dev->path.pnp.port, IPMI_NETFN_OEM, 0x0, IPMI_OEM_SET_PPIN,
+		(const unsigned char *) &req, sizeof(req), (unsigned char *) &rsp, sizeof(rsp));
+
+	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n",
+			__func__, ret, rsp.completion_code);
+			return CB_ERR;
+	}
+	printk(BIOS_DEBUG, "IPMI: %s command success\n", __func__);
+	return CB_SUCCESS;
+}
+
 static void ipmi_ocp_init(struct device *dev)
 {
 	/* Add OCP specific IPMI command */
@@ -126,6 +151,8 @@ static void ipmi_ocp_final(struct device *dev)
 
 	/* Send processor information */
 	ipmi_set_processor_information(dev);
+	if (CONFIG(OCP_DMI))
+		ipmi_set_ppin(dev);
 }
 
 static void ipmi_set_resources(struct device *dev)
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp.h b/src/drivers/ipmi/ocp/ipmi_ocp.h
index 96b0086298..0c9f452db5 100644
--- a/src/drivers/ipmi/ocp/ipmi_ocp.h
+++ b/src/drivers/ipmi/ocp/ipmi_ocp.h
@@ -7,6 +7,12 @@
 #include <cpu/x86/name.h>
 #include "drivers/ipmi/ipmi_kcs.h"
 
+#define IPMI_NETFN_OEM				0x30
+#define  IPMI_OEM_SET_PPIN			0x77
+#define  IPMI_BMC_SET_POST_START		0x73
+#define  IPMI_OEM_SET_BIOS_BOOT_ORDER		0x52
+#define  IPMI_OEM_GET_BIOS_BOOT_ORDER		0x53
+
 #define IPMI_NETFN_OEM_COMMON			0x36
 #define  IPMI_BMC_SET_PROCESSOR_INFORMATION     0x10
 #define  IPMI_BMC_GET_PROCESSOR_INFORMATION     0x11
@@ -14,6 +20,12 @@
 #define MSR_CORE_THREAD_COUNT	0x35
 #define MSR_PLATFORM_INFO	0xce
 
+#define CMOS_BIT  (1 << 1)
+#define VALID_BIT (1 << 7)
+#define CLEAR_CMOS_AND_VALID_BIT(x) ((x) &= ~(CMOS_BIT | VALID_BIT))
+#define SET_CMOS_AND_VALID_BIT(x)   ((x) |= (CMOS_BIT | VALID_BIT))
+#define IS_CMOS_AND_VALID_BIT(x)    ((x)&CMOS_BIT && (x)&VALID_BIT)
+
 struct ipmi_processor_info_req {
 	uint8_t manufacturer_id[3];
 	uint8_t index;
@@ -33,4 +45,22 @@ struct ipmi_processor_info_param2_req {
 	char revision[2];
 } __packed;
 
+struct ppin_req {
+	uint32_t cpu0_lo;
+	uint32_t cpu0_hi;
+	uint32_t cpu1_lo;
+	uint32_t cpu1_hi;
+} __packed;
+
+struct boot_order {
+	uint8_t boot_mode;
+	uint8_t boot_dev0;
+	uint8_t boot_dev1;
+	uint8_t boot_dev2;
+	uint8_t boot_dev3;
+	uint8_t boot_dev4;
+} __packed;
+
+enum cb_err ipmi_set_post_start(const int port);
+enum cb_err ipmi_set_cmos_clear(void);
 #endif
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp_romstage.c b/src/drivers/ipmi/ocp/ipmi_ocp_romstage.c
new file mode 100644
index 0000000000..8e43d8d159
--- /dev/null
+++ b/src/drivers/ipmi/ocp/ipmi_ocp_romstage.c
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <drivers/ipmi/ipmi_kcs.h>
+
+#include "ipmi_ocp.h"
+
+enum cb_err ipmi_set_post_start(const int port)
+{
+	int ret;
+	struct ipmi_rsp rsp;
+
+	ret = ipmi_kcs_message(port, IPMI_NETFN_OEM, 0x0,
+				 IPMI_BMC_SET_POST_START, NULL, 0, (u8 *) &rsp,
+				 sizeof(rsp));
+
+	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d rsp=0x%x)\n",
+		       __func__, ret, rsp.completion_code);
+		return CB_ERR;
+	}
+	if (ret != sizeof(rsp)) {
+		printk(BIOS_ERR, "IPMI: %s response truncated\n", __func__);
+		return CB_ERR;
+	}
+
+	printk(BIOS_DEBUG, "IPMI BMC POST is started\n");
+	return CB_SUCCESS;
+}
+
+enum cb_err ipmi_set_cmos_clear(void)
+{
+	int ret;
+
+	struct ipmi_oem_rsp {
+		struct ipmi_rsp resp;
+		struct boot_order data;
+	} __packed;
+
+	struct ipmi_oem_rsp rsp;
+	struct boot_order req;
+
+	/* IPMI OEM get bios boot order command to check if the valid bit and
+	   the CMOS clear bit are both set from the response BootMode byte. */
+	ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
+			IPMI_OEM_GET_BIOS_BOOT_ORDER,
+			NULL, 0,
+			(unsigned char *) &rsp, sizeof(rsp));
+
+	if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (read ret=%d resp=0x%x)\n",
+			__func__, ret, rsp.resp.completion_code);
+		return CB_ERR;
+	}
+
+	if (!IS_CMOS_AND_VALID_BIT(rsp.data.boot_mode)) {
+		req = rsp.data;
+		SET_CMOS_AND_VALID_BIT(req.boot_mode);
+		ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
+				IPMI_OEM_SET_BIOS_BOOT_ORDER,
+				(const unsigned char *) &req, sizeof(req),
+				(unsigned char *) &rsp, sizeof(rsp));
+
+		if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
+			printk(BIOS_ERR, "IPMI: %s command failed (sent ret=%d resp=0x%x)\n",
+				__func__, ret, rsp.resp.completion_code);
+			return CB_ERR;
+		}
+
+		printk(BIOS_INFO, "IPMI CMOS clear requested because CMOS data is invalid.\n");
+
+		return CB_SUCCESS;
+	}
+
+	return CB_SUCCESS;
+}
diff --git a/src/mainboard/ocp/deltalake/ipmi.c b/src/mainboard/ocp/deltalake/ipmi.c
index 7adbcf2444..90222157e3 100644
--- a/src/mainboard/ocp/deltalake/ipmi.c
+++ b/src/mainboard/ocp/deltalake/ipmi.c
@@ -3,30 +3,13 @@
 #include <console/console.h>
 #include <drivers/ipmi/ipmi_kcs.h>
 #include <drivers/ipmi/ipmi_ops.h>
+#include <drivers/ipmi/ocp/ipmi_ocp.h>
 #include <drivers/vpd/vpd.h>
 #include <string.h>
 
 #include "ipmi.h"
 #include "vpd.h"
 
-enum cb_err ipmi_set_ppin(struct ppin_req *req)
-{
-	int ret;
-	struct ipmi_rsp rsp;
-
-	ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0, IPMI_OEM_SET_PPIN,
-			(const unsigned char *) req, sizeof(*req),
-			(unsigned char *) &rsp, sizeof(rsp));
-
-	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
-		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n",
-			__func__, ret, rsp.completion_code);
-		return CB_ERR;
-	}
-
-	return CB_SUCCESS;
-}
-
 enum cb_err ipmi_get_pcie_config(uint8_t *pcie_config)
 {
 	int ret;
@@ -75,29 +58,6 @@ enum cb_err ipmi_get_slot_id(uint8_t *slot_id)
 	return CB_SUCCESS;
 }
 
-enum cb_err ipmi_set_post_start(const int port)
-{
-	int ret;
-	struct ipmi_rsp rsp;
-
-	ret = ipmi_kcs_message(port, IPMI_NETFN_OEM, 0x0,
-				 IPMI_BMC_SET_POST_START, NULL, 0, (u8 *) &rsp,
-				 sizeof(rsp));
-
-	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
-		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d rsp=0x%x)\n",
-		       __func__, ret, rsp.completion_code);
-		return CB_ERR;
-	}
-	if (ret != sizeof(rsp)) {
-		printk(BIOS_ERR, "IPMI: %s response truncated\n", __func__);
-		return CB_ERR;
-	}
-
-	printk(BIOS_DEBUG, "IPMI BMC POST is started\n");
-	return CB_SUCCESS;
-}
-
 void init_frb2_wdt(void)
 {
 	uint8_t enable;
@@ -135,51 +95,3 @@ void init_frb2_wdt(void)
 		ipmi_stop_bmc_wdt(CONFIG_BMC_KCS_BASE);
 	}
 }
-
-enum cb_err ipmi_set_cmos_clear(void)
-{
-	int ret;
-
-	struct ipmi_oem_rsp {
-		struct ipmi_rsp resp;
-		struct boot_order data;
-	} __packed;
-
-	struct ipmi_oem_rsp rsp;
-	struct boot_order req;
-
-	/* IPMI OEM get bios boot order command to check if the valid bit and
-	   the CMOS clear bit are both set from the response BootMode byte. */
-
-	ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
-			IPMI_OEM_GET_BIOS_BOOT_ORDER,
-			NULL, 0,
-			(unsigned char *) &rsp, sizeof(rsp));
-
-	if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
-		printk(BIOS_ERR, "IPMI: %s command failed (read ret=%d resp=0x%x)\n",
-			__func__, ret, rsp.resp.completion_code);
-		return CB_ERR;
-	}
-
-	if (!IS_CMOS_AND_VALID_BIT(rsp.data.boot_mode)) {
-		req = rsp.data;
-		SET_CMOS_AND_VALID_BIT(req.boot_mode);
-		ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
-				IPMI_OEM_SET_BIOS_BOOT_ORDER,
-				(const unsigned char *) &req, sizeof(req),
-				(unsigned char *) &rsp, sizeof(rsp));
-
-		if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
-			printk(BIOS_ERR, "IPMI: %s command failed (sent ret=%d resp=0x%x)\n",
-				__func__, ret, rsp.resp.completion_code);
-			return CB_ERR;
-		}
-
-		printk(BIOS_INFO, "IPMI CMOS clear requested because CMOS data is invalid.\n");
-
-		return CB_SUCCESS;
-	}
-
-	return CB_SUCCESS;
-}
diff --git a/src/mainboard/ocp/deltalake/ipmi.h b/src/mainboard/ocp/deltalake/ipmi.h
index 440a5056ba..269fc034d5 100644
--- a/src/mainboard/ocp/deltalake/ipmi.h
+++ b/src/mainboard/ocp/deltalake/ipmi.h
@@ -5,19 +5,9 @@
 
 #include <stdint.h>
 
-#define IPMI_NETFN_OEM				0x30
-#define   IPMI_OEM_SET_PPIN			0x77
-#define   IPMI_OEM_GET_PCIE_CONFIG		0xf4
-#define   IPMI_OEM_GET_BOARD_ID			0x37
-#define   IPMI_BMC_SET_POST_START		0x73
-#define   IPMI_OEM_SET_BIOS_BOOT_ORDER		0x52
-#define   IPMI_OEM_GET_BIOS_BOOT_ORDER		0x53
+#define IPMI_OEM_GET_PCIE_CONFIG		0xf4
+#define IPMI_OEM_GET_BOARD_ID			0x37
 
-#define   CMOS_BIT  (1 << 1)
-#define   VALID_BIT (1 << 7)
-#define   CLEAR_CMOS_AND_VALID_BIT(x) ((x) &= ~(CMOS_BIT | VALID_BIT))
-#define   SET_CMOS_AND_VALID_BIT(x)   ((x) |= (CMOS_BIT | VALID_BIT))
-#define   IS_CMOS_AND_VALID_BIT(x)    ((x)&CMOS_BIT && (x)&VALID_BIT)
 
 enum config_type {
 	PCIE_CONFIG_UNKNOWN = 0x0,
@@ -27,26 +17,8 @@ enum config_type {
 	PCIE_CONFIG_D = 0x4,
 };
 
-struct ppin_req {
-	uint32_t cpu0_lo;
-	uint32_t cpu0_hi;
-	uint32_t cpu1_lo;
-	uint32_t cpu1_hi;
-} __packed;
-
-struct boot_order {
-	uint8_t boot_mode;
-	uint8_t boot_dev0;
-	uint8_t boot_dev1;
-	uint8_t boot_dev2;
-	uint8_t boot_dev3;
-	uint8_t boot_dev4;
-} __packed;
-
-enum cb_err ipmi_set_ppin(struct ppin_req *req);
 enum cb_err ipmi_get_pcie_config(uint8_t *config);
 enum cb_err ipmi_get_slot_id(uint8_t *slot_id);
-enum cb_err ipmi_set_post_start(const int port);
 void init_frb2_wdt(void);
-enum cb_err ipmi_set_cmos_clear(void);
+
 #endif
diff --git a/src/mainboard/ocp/deltalake/ramstage.c b/src/mainboard/ocp/deltalake/ramstage.c
index 4a3e385963..40810b6364 100644
--- a/src/mainboard/ocp/deltalake/ramstage.c
+++ b/src/mainboard/ocp/deltalake/ramstage.c
@@ -353,13 +353,6 @@ void mainboard_silicon_init_params(FSPS_UPD *params)
 
 static void mainboard_final(void *chip_info)
 {
-	struct ppin_req req = {0};
-
-	req.cpu0_lo = xeon_sp_ppin[0].lo;
-	req.cpu0_hi = xeon_sp_ppin[0].hi;
-	/* Set PPIN to BMC */
-	if (ipmi_set_ppin(&req) != CB_SUCCESS)
-		printk(BIOS_ERR, "ipmi_set_ppin failed\n");
 }
 
 struct chip_operations mainboard_ops = {
diff --git a/src/mainboard/ocp/deltalake/romstage.c b/src/mainboard/ocp/deltalake/romstage.c
index 9b182a215c..0a7ecf18d8 100644
--- a/src/mainboard/ocp/deltalake/romstage.c
+++ b/src/mainboard/ocp/deltalake/romstage.c
@@ -2,6 +2,7 @@
 
 #include <console/console.h>
 #include <drivers/ipmi/ipmi_kcs.h>
+#include <drivers/ipmi/ocp/ipmi_ocp.h>
 #include <drivers/vpd/vpd.h>
 #include <fsp/api.h>
 #include <FspmUpd.h>
diff --git a/src/mainboard/ocp/tiogapass/Kconfig b/src/mainboard/ocp/tiogapass/Kconfig
index 67c1fa9d52..2ead76db72 100644
--- a/src/mainboard/ocp/tiogapass/Kconfig
+++ b/src/mainboard/ocp/tiogapass/Kconfig
@@ -8,6 +8,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select HAVE_ACPI_TABLES
 	select IPMI_KCS
 	select IPMI_KCS_ROMSTAGE
+	select IPMI_OCP
 	select MAINBOARD_USES_FSP2_0
 	select OCP_DMI
 	select PARALLEL_MP_AP_WORK
diff --git a/src/mainboard/ocp/tiogapass/devicetree.cb b/src/mainboard/ocp/tiogapass/devicetree.cb
index 488f677a95..833bb20e21 100644
--- a/src/mainboard/ocp/tiogapass/devicetree.cb
+++ b/src/mainboard/ocp/tiogapass/devicetree.cb
@@ -76,6 +76,9 @@ chip soc/intel/xeon_sp/skx
 				register "bmc_i2c_address" = "0x20"
 				register "bmc_boot_timeout" = "90"
 			end
+			chip drivers/ipmi/ocp # OCP specific IPMI porting
+				device pnp ca2.1 on end
+			end
 		end # Intel Corporation C621 Series Chipset LPC/eSPI Controller
 		device pci 1f.1 hidden end # p2sb
 		device pci 1f.2 on end # Intel Corporation C620 Series Chipset Family Power Management Controller
diff --git a/src/mainboard/ocp/tiogapass/ipmi.c b/src/mainboard/ocp/tiogapass/ipmi.c
index 0cdf110bd8..74f96fe36c 100644
--- a/src/mainboard/ocp/tiogapass/ipmi.c
+++ b/src/mainboard/ocp/tiogapass/ipmi.c
@@ -3,29 +3,13 @@
 #include <console/console.h>
 #include <drivers/ipmi/ipmi_kcs.h>
 #include <drivers/ipmi/ipmi_ops.h>
+#include <drivers/ipmi/ocp/ipmi_ocp.h>
 #include <drivers/vpd/vpd.h>
 #include <string.h>
 
 #include "ipmi.h"
 #include "vpd.h"
 
-void ipmi_set_ppin(struct ppin_req *req)
-{
-	int ret;
-	struct ipmi_rsp rsp;
-
-	ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0, IPMI_OEM_SET_PPIN,
-			(const unsigned char *) req, sizeof(*req),
-			(unsigned char *) &rsp, sizeof(rsp));
-
-	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
-		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n",
-			__func__, ret, rsp.completion_code);
-		return;
-	}
-	printk(BIOS_DEBUG, "IPMI Set PPIN to BMC done.\n");
-}
-
 void init_frb2_wdt(void)
 {
 	char val[VPD_LEN];
diff --git a/src/mainboard/ocp/tiogapass/ipmi.h b/src/mainboard/ocp/tiogapass/ipmi.h
index 798f3125ef..93101c2bfe 100644
--- a/src/mainboard/ocp/tiogapass/ipmi.h
+++ b/src/mainboard/ocp/tiogapass/ipmi.h
@@ -4,17 +4,5 @@
 #define TIOGAPASS_IPMI_H
 #include <types.h>
 
-#define IPMI_NETFN_OEM 0x30
-#define IPMI_OEM_SET_PPIN 0x77
-
-/* PPIN for 2 CPU IPMI request */
-struct ppin_req {
-	uint32_t cpu0_lo;
-	uint32_t cpu0_hi;
-	uint32_t cpu1_lo;
-	uint32_t cpu1_hi;
-} __packed;
-/* Send CPU0 and CPU1 PPIN to BMC */
-void ipmi_set_ppin(struct ppin_req *req);
 void init_frb2_wdt(void);
 #endif
diff --git a/src/mainboard/ocp/tiogapass/ramstage.c b/src/mainboard/ocp/tiogapass/ramstage.c
index 29148d14ec..df7720538e 100644
--- a/src/mainboard/ocp/tiogapass/ramstage.c
+++ b/src/mainboard/ocp/tiogapass/ramstage.c
@@ -7,8 +7,6 @@
 #include <soc/ramstage.h>
 #include <soc/lewisburg_pch_gpio_defs.h>
 
-#include "ipmi.h"
-
 extern struct fru_info_str fru_strings;
 
 static const struct port_information SMBIOS_type8_info[] = {
@@ -185,14 +183,6 @@ static void mainboard_enable(struct device *dev)
 
 static void mainboard_final(void *chip_info)
 {
-	struct ppin_req req;
-
-	req.cpu0_lo = xeon_sp_ppin[0].lo;
-	req.cpu0_hi = xeon_sp_ppin[0].hi;
-	req.cpu1_lo = xeon_sp_ppin[1].lo;
-	req.cpu1_hi = xeon_sp_ppin[1].hi;
-	/* Set PPIN to BMC */
-	ipmi_set_ppin(&req);
 }
 
 struct chip_operations mainboard_ops = {
diff --git a/src/mainboard/ocp/tiogapass/romstage.c b/src/mainboard/ocp/tiogapass/romstage.c
index fb2ce0217a..20c74660ce 100644
--- a/src/mainboard/ocp/tiogapass/romstage.c
+++ b/src/mainboard/ocp/tiogapass/romstage.c
@@ -3,6 +3,7 @@
 #include <fsp/api.h>
 #include <FspmUpd.h>
 #include <drivers/ipmi/ipmi_kcs.h>
+#include <drivers/ipmi/ocp/ipmi_ocp.h>
 #include <soc/romstage.h>
 #include <string.h>
 #include <gpio.h>
@@ -53,8 +54,10 @@ static void mainboard_config_iio(FSPM_UPD *mupd)
 void mainboard_memory_init_params(FSPM_UPD *mupd)
 {
 	/* It's better to run get BMC selftest result first */
-	if (ipmi_kcs_premem_init(CONFIG_BMC_KCS_BASE, 0) == CB_SUCCESS)
+	if (ipmi_kcs_premem_init(CONFIG_BMC_KCS_BASE, 0) == CB_SUCCESS) {
+		ipmi_set_post_start(CONFIG_BMC_KCS_BASE);
 		init_frb2_wdt();
+	}
 	mainboard_config_iio(mupd);
 
 	/* do not configure GPIO controller inside FSP-M */